Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
J William Neilson, MD
Surgery Physician in Amarillo, TX · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720061724
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Registry record
Entity type Individual (Type 1)
Name J William Neilson
Credential MD
Sex Male
Practice address 6 Medical Dr, Amarillo, TX, 79106
Phone (806) 353-6604
Fax (806) 359-0938
Enumeration date Nov 22, 2005
Last updated in NPPES Jul 13, 2026
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify J Neilson's NPI record?
Cross-check NPI 1720061724 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1720061724 active?
Yes, as of the latest NPPES snapshot, NPI 1720061724 is active (record last updated 2026-07-13).
Other providers at this practice address
Browse all → John Mckinley Surgery Physician · Amarillo, TX NPI 1093798811 Robert Taylor Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Amarillo, TX NPI 1427031251 Michael Lary Surgery Physician · Amarillo, TX NPI 1558347799 Andrew Lee Family Medicine Physician · Amarillo, TX NPI 1861837668 Travis Vowels Vascular Surgery Physician · Amarillo, TX NPI 1184088908 Michael Maldonado Family Nurse Practitioner · Amarillo, TX NPI 1144976184
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.